By Nathalie Tadena

Amarin said it will begin hiring a sales force to independently launch its cholesterol-reducing fish-oil pill Vascepa, disappointing investors who had hoped the company would have a partner by now. Shares plunged 18% to $9.78 in premarket trade.

A panel of medical experts recommended Abiomed’s Impella heart pump remain designated as a Class 3 device, rather than the lower-risk Class 2 category it had hoped for. Shares dropped 11% to $11.50 in premarket trade.

Einstein Noah Restaurant Group Inc. said it has completed its strategic review process by recapitalizing the company and issued a special dividend of $4 a share. Shares rose 8.9% to $17.20 premarket.

Drug developer Arrowhead Research Corp. (ARWR) expects to offer an undisclosed number of shares and warrants, subject to market conditions. It had 11.1 million shares outstanding as of Sept. 30.

Avago Technologies Ltd. (AVGO) said certain shareholders, including its chief executive, are selling around 21.5 million shares. The chip maker had around 246 million shares outstanding as of Oct. 30.

Biodel Inc. (BIOD) said the Food and Drug Administration has granted “orphan” drug status for its glucagon drug for the prevention of hypoglycemia–excessively low blood sugar–in the congenital hyperinsulinism population.

Cooper Cos.'s (COO) fiscal fourth-quarter earnings rose 27% as the company continued to post growth in its contact-lens business and margins improved.

Dole Food Co. Inc. (DOLE) said President and Chief Executive David A. DeLorenzo will join Itochu Corp. (ITOCY, 8001.TO) when a roughly $1.69 billion deal to sell Dole’s worldwide packaged foods and Asia fresh produce businesses to the Japanese company is completed.

Geo Group Inc.'s (GEO) board has authorized the private-prison operator to divest certain health-care assets as it moves toward converting itself into a real-estate investment trust by 2013, in a bid to maximize shareholder value.

The Securities and Exchange Commission said it may bring a suit against Netflix Inc. (NFLX) and Chief Executive Reed Hastings for potentially violating the agency’s disclosure rules with a Facebook post that Mr. Hastings made in July.

Aviation-parts supplier TransDigm Group Inc. (TDG) said an agreement to buy the Goodrich pump and engine control systems business from United Technologies Corp. (UTX) has been terminated after the U.S. Justice Department objected to the deal.

Moody’s Investors Service downgraded U.S. Bancorp 's (USB) investment-grade ratings by a notch, on expectations the regional lender’s performance may be somewhat weaker than expected amid challenges daunting the financial sector.

Vantiv Inc. (VNTV) said an offering of 12.5 million shares by stockholder Fifth Third Bancorp (FITB) priced at 1.7% discount to the payment processor’s Thursday closing price.

Webster Financial Corp. (WBS) said that shareholders affiliated with Warburg Pincus Private Equity X L.P. plan to offer 10 million shares. The parent of Webster Bank had around 87.9 million shares outstanding as of Oct. 31.

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